Show HN: LanGuard, a Mac menu-bar app that turns Wi-Fi off while you're wired

Category: devtools

Tags: macos, menu-bar, wifi, ethernet, network-automation

Score: 6.3/10 (Innovation: 5, Technical: 6, Documentation: 8, Utility: 6)

LanGuard is a native macOS menu-bar app that automatically disables Wi-Fi when a wired Ethernet link is active and re-enables it upon unplugging. It features edge-based detection, wake-awareness, per-interface configuration, and optional connection protection with a root helper. The project is well-documented and addresses a common annoyance for Mac users with both wired and wireless connectivity.

Target audience: macOS power users, developers, and IT professionals

Repository: https://github.com/roypadina/LanGuard · Swift · MIT · 25 stars

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